User's Manual

0
LTE Module
EC25-A User Manual
EC25-A_User_Manual Confidential / Released 29 / 7
PWRKEY
S1
Close to S1
TVS
Figure 11: Turn on the Module Using Keystroke
The turn on scenario is illustrated in the following figure.
V
IL
≤ 0.5V
V
IH
≥ 1.3V
VBAT
PWRKEY
≥ 100ms
RESET_N
STATUS
(OD)
Inactive
ActiveUART
NOTE
Inactive
ActiveUSB
TBD
TBD
TBD
Figure 12: Timing of Turning on Module
Make sure that VBAT is stable before pulling down PWRKEY pin. The time between them is no less than
30ms.
NOTE